Paper-bag machine



(No Model.) 4 Sheets-Sheet 1.

W. A. LORENZ 81; W. H. HONISS.

' PAPER BAG MACHINE.

N0. 33'7,966. Patented Mar. 16, 1886.

(No Model.) 4 SheetsSheet 2. W. A. LORENZ & W. H. HONISS.

PAPER BAG MACHINE.

No. 337,966. Patented Mar. 16, 1886.

N PEITINS, Fhuloilllmgmphor, Washmglon. [1Cv (No Model.) 4 Sheets-Sheet 3.

W. A. LORENZ & W. H. HONISS.

PAPER BAG MACHINE.

No. 337,966. Patented Mar. 16, 1886.

N. PUERS, Phnln-Ldhngmphnr. Washingion. 0. c.

4 Sheets-Sheet 4. W. A. LORENZ & W. H. HONISS.

PAPER BAG MACHINE,

(No Model.)

In van tar-.5:

N. PLTERS. Phmo-Lnhu mr. Washington. 0.6.

.NITED; STATES PATENT OFFICE.

\VILLIAM A. LORENZ AND WILLIAM H. HONISS, OF HARTFORD, CONN EC'II- OUT, ASSIGNORS TO FELIX W. LEINBACH AND CLARENCE A. XVOLLE, OF

BETHLEHEM, PENNSYLVANIA.

PAPER-BAG MACHINE.

SPECIFICATION forming part of Letters Patent No. 337,966. dated March 16, 1886.

Application filed June 20,1885.

To all whom it may concern.-

' Be it known that we, WILLIAM A. LORENZ and WILLIAM H. HONISS, both of Hartford,

Connecticut, have invented certain new and useful Improvements in Paper-Bag Machines, of which the following description and claims constitute the specification, and which are illustrated by the accompanying four sheets of drawings.

This machine manufactures continuous tucked paper tubing into paper-bag blanks, which have one end folded down into the diamond shape shown in Figure 4 of the drawings, and which may be manufactured into paper [5 bags by means of machinery shown in our application of May 15, 1884, for Letters Patent of the United States. The diamond-folding mechanism of this machine is similar in many respects to that shown in our application of February 24, 1885, for Letters Patent of the United States for a machine to perform the same function, but in other respects it is substantially different from that and from every other mechanism known to us.

Fig. 1 of the drawings is a plan view of a section of tucked paper tubing of suitable length for a bag-blank, and Fig. 2 is an end view of the same. Fig. 3 is a plan view of the tube of Figs. 1 and 2 after one end thereof has been folded down into the desired diamond shape, but before the folding mechanism has been withdrawn therefrom. Fig. 4 is a plan view of the same after such withdrawal.

Fig. 5 is a side view of this machine. Fig. 6

5 is a plan view of what is shown in Fig. 5, but

with the oscillating presser-plate broken away on the line 0 d in order to show the parts be low the same. Fig. 7 is a sectional viewlooking to the left fromthe line a b of Fig. 6. Fig.

0 8 is aside view of parts of the diamond-folding mechanism when partly turned over in doing its work. Fig. 9 is a side view of the same when fully turned over and in the position relative to the blank which is shown in Fig. 4.

Fig. 10 is a plan view of the broken-away oscillating presser-plate and of its appurtenances.

The stud 1 has a bearing for the loose pulley 2 and another for the hub of the working- Serial No. 169,275. (No model.)

pulley 3. Both pulleys are driven in the direction indicated by the arrow adjacent to the belt shown in Fig. 5.

The numerals 4 and 5 indicate the upright sides of the frame of the machine. The gear 6 is fixed to the hub of the pulley 3 and meshes with the gear 7 on the shaft 9, while the gear 7 meshes with the gear 8 on the shaft 10. The shafts 9 and 10 carry the drawing-rolls 11 and 12, which rolls draw the tucked paper tubing into the machine from an adjacent machine adapted to manufacture the same.- The extremity of the tube-former of such a machine is shown in Figs. 5 and 6, and is indicated by the numeral 13. The tucked paper tube 14 has the tucks 15 and 16. the lower folds, 17 and 18, the upper folds, 19 and 20, and the seam 21. The cutting-rolls 24 and 25 are keyed to the shafts 26 and 27, respectively, and receive motion from the gear 6, meshing with the gear 28 on the shaft 26, while the gear 28 meshes with the gear 29 on the shaft 27. The upper drawing-ro1l,12,and the upper cutting-roll, 25, are subjected to the downward pressure of the springs 30 and 31, re spectively,which springs bear downward upon 7 5 the sliding boxes 32 and 33, respectively, and are adjustable by the thumb-screws 22 and 23, respectively. Similar springs, boxes, and thumb-screws are also used on the other side of the machine to press downward upon the other ends of the upper drawing-roll and cutting roll. The knife 34 is fixedin the periphery of the cutting-roll 25, and lengthwise thereof, while the rubber pad 35 is fixed correspond ingly in the periphery of the cutting-roll 24.

The drawing-rolls have annular recesses on their peripheries, and the cutting-rolls havev corresponding recesses extending part way around their peripheries, as shown in Fig. 6. The object of these recesses is to give room for 0 the passage of the six turns in the tucked pa per tubing without flatteningthem down, and thus depriving them of their elasticity.

A reciprocating carriage, 38, slides on ways 39 and 40, supported by brackets 41 and 42. The carriage is driven by the crank-43 through the crank-pin 44,the connecting-rod 45, and the carriage-pin 46. The lower presser-plate, 47,

is attached to the carriage by the pivot 48, near its rear end,while its forward end is supported by the arm 49. The lower end of that arm is provided with the roller 50, and that roller runs forward and backward in the groove 51. passing over the trip-cam 52 in its forward movement and under that cam during its backward motion. The cam is hinged by the pivot 53 to the inner surface of the groove, so that it may oscillate on a vertical plane parallel with that surface. The shaft 54 oscillates in brackets which project forward and downward from the. forward end of the lower presser-plate, 47. The bevel-gears 55 and 56 are keyed to that shaft, and mesh with the bevel-gears 57 and 58, respectively, which are respectively keyed to the shafts 59 and 60,

and which shafts turn in brackets projecting downward from the lowerside borders of the lower presser-plate, 47. Theshafts 59 and60 carry the lower side grippers, 61 and 62, respect ively,while the shaft 54 carries thelower front grippers, 63. All these three shafts are crank-pin 44.

oscillated in unison by the crank 64. That crank isprovided with the roller 65, projecting horizontally from its outer end, and running upon the level rail 66. The upperand oscillating presser-plate, 67, is attached to the carriage by the pivot 68 at its rear edge,-and is made tooscillate by the gear 69, the sector-gear 70, the connecting-rod 71, the slide 72, the roller 73, and the cam 74, which cam is'fixed to the The range of oscillation of'the upper presser-pl ate is from the position sh own in Fig. 5 to that shown in Fig. '9. The shaft 75 oscillates in brackets projecting forward and upward from the forward edge of the upper and oscillating presser-plate, 67. The bevel-gears 76 and 77 are keyed to that shaft and mesh with the bevel-gears 78 and 79, respectively, which gears are respectively keyed to the shafts 80 and 81, and which shafts turn v in brackets projecting upward from the upper side borders of the upper presser-plate, 67. The shafts 80 and 81 carry the upper side grippers, 82 and 83, respectively, while the shatt'75 carries the upper front gripper, 84. All three of these shafts are oscillated in unison by the arrns85 and 86, alternately. The arm 85 is provided with the roller 87, project ing horizontally from its outer end and striking upon the rail 88. The arm 86 is provided with the roller 89, striking upon the rail 90.

The springs 91 and 92 act upon the grippers 63 and 84, respectively, and through them and the lower and upper shafts and bevelgears, respectively, upon the lower and upper side I grippers, in such a way as to keep all the grippers closed upon their respective presserplates, except whensueh action is prevented by the roller colliding with the rail 66, or by the roller 87 colliding with the rail 88, or by the roller 89 colliding with the rail 90, as

the case may be. The platform 93 supports tliepa per tubingfwhile it passes from the cutting-rolls to the presser-plates.

The mode of operation is as followszThe tucked paper tubing is continuously drawn into the machine by the drawing-rolls 11 and 12,- and is projected into the space which is between the rear edge of the upper presserplate, 67,. and the upper side of the lower presser-plate, 47, 'whenthe roller 50 restsupon the lower sideofzthelgroove 51, and 13 proj ected still farther forward-till its forward end reaches the forward borders of the two presserplates. Shortly before that moment of time the carriage38 begins its forward movement, and that movement forces the roller 50 to mount upward along the left-hand inclined end of the-cam 52 to the position shown in Fig. 5, and also releases the roller 65 from' downward pressure upon the rail 66. That forcing upwardof the roller 50 raises the presser-plate 47 to the positionindicated in Fig. 5, and thus clasps the paper tubing tween'itsupperside and'the rear edge of the upper resser-plate, andthat releasing ofthe roller 65'allows the-spring -91 to oscillate'the shaft 54, and byso doing to force'the gripper 63-toclaspthe forward endof the lower -ply of the paper tubingdown upon the forward I border of the lower resser-plate, and also to force-the grippers'61 and-62'to clasp the lower folds of thepaper tubing down-upon the sidesborders of-that'presser-plate. Whenthe forward-end of the paper 'tubingreaches the forward borders of-theitwo presser-platea the sector 70 begins its forward movement, and thusraises the upper resser-plate upon its pivot, and also raises the roller 87 from-the rail 88, and thus allows-the spring 92 to oscillate the shaft 75, and by so doing to force the gripper-84110 claspthe forward end of theupper plylof the tucked-paper tubing up against theforward border of the upper presser-plate, and to force the grippers82and 83 to clasp the upper folds, 19 and 20, 'respectively, up against the respective side borders of that presserplate. Then the knife 34 severs a bag-length from the paper tubing, and as the carriage 3S and sector 70 proceed still farther on theirforward movement-the upper-presser-plate-continues to oscillate upon its pivot from the-position'shown in Fig. 5, through that shownin Fig.8, nearly to that show'n'in Fig. 9. Thus thegrippers 82, -83, and-84 actagainst the grip.- pers 61, 62, and 63 to open out the endofthe bag-length of Figs. 1 and2 into the diamond form of Fig. 3. Then the roller 50 pass'es'off from the right-hand end of the cam 52 to the bot-' upon the bag-blank. At the same time the f roller 89 collides with the rail 90, and thus lifts the grippers 82, 83, and 84 against the resistance of the spring 92 from pressing any longer those places in the bag-blank which they have clasped upon the borders of the presser-plate 67. Thus released from all the grippers and from being clasped between the two presser-plates, the bag-blank may be withdrawn from the machine by any propermechanism, which may also transferit to other machinery for making the subsequentfolds ofthe bottom of the bag. Then the carriage 38 and the sector 70 make their backward motions,the roller 50 passing under the cam 52, and thus holding the lower presser-plate away from the pivoted edge of the upper presser-plate, in order to give abundant entrance to the new end of the tucked paper tubing, and also holding all the lower grippers open by means of the collision of the roller 65 with the rail 66, and the roller 87 colliding at the end of the movement with the rail 88,and thus opening all the upper grippers for the reception of the upper ply and upper folds of the bag-blank next to be operated upon.

\Ve do not herein claim the combination of the carriage 38, a presser-plate pressing downward upon the carriage, two grippers pressing downward upon the side borders of the upper surface of the carriage, and two pairs of grippers oscillating in an arc of a circle above the carriage, that combination being covered by claim4 of our application No. 156,865 for Letters Patent of the United States of America, filed February 24, 1885.

Ve claim as our invention 1. The combination of the side grippers, 61 and 62, the front gripper, 63, the shafts 54, 59, and 60, the bevel-gears 55, 56, 57, and 58, the arm 64:, the rail 66, and the spring 91, all substantially as described.

2. The combination of the presser-plate 47, oscillating on the pivot48,and the presser-plate 67,0scillating on the pivot 68, substantially as described.

3. The combination of the presser-plate 47, provided with the grippers 61, 62, and 63, with the resser-plate 67 ,provided with thegrippers 82, 83, and 84, substantially as described.

4. The combination of a presser-plate, oscil lating on a pivot, and two side grippers and one front gripper clasping a paper tube to that presser-plate, all substantially as described.

WILLIAM A. LORENZ. \VILLIAM H. HONISS.

Vi tn esses:

ALBERT H. WALKER, \VILLARD EDDY. 

